[  456.709395] netdevsim netdevsim277 eni277np1: renamed from eth0
[  456.710603] netdevsim netdevsim713 eni713np1: renamed from eth1
[  456.802664] Could not find device with ifindex 2000 in netnsfd 11
[  456.802774] Could not find netns with fd: 2000
[  456.802824] Cannot link a netdevsim to itself
[  456.802899] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).